๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

BTTB preconditioners for BTTB least squares problems

โœ Scribed by Fu-Rong Lin; De-Cai Zhang


Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
378 KB
Volume
434
Category
Article
ISSN
0024-3795

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


A block-preconditioner for a special reg
โœ Tommy Elfving; Ingegerd Skoglund ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 203 KB

## Abstract We consider a linear system of the form __A__~1~__x__~1~ + __A__~2~__x__~2~ + ฮท=__b__~1~. The vector ฮทconsists of independent and identically distributed random variables all with mean zero. The unknowns are split into two groups __x__~1~ and __x__~2~. It is assumed that __A____A__~1~ h

Generalization of Strang's Preconditione
โœ Raymond H. Chan; Michael K. Ng; Robert J. Plemmons ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 969 KB

In this paper, we propose a method to generalize Strang's circulant preconditioner for arbitrary n-by-n matrices A,,. The 181th column of our circulant preconditioner S,, is equal to the 151 th column of the given matrix A,,. Thus if A,, is a square Toeplitz matrix, then S,, is just the Strang circu

Matrix stretching for sparse least squar
โœ Mikael Adlers; ร…ke Bjรถrck ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 91 KB

For linear least squares problems min x Ax -b 2 , where A is sparse except for a few dense rows, a straightforward application of Cholesky or QR factorization will lead to catastrophic fill in the factor R. We consider handling such problems by a matrix stretching technique, where the dense rows ar

Least-squares problems for Michaelisโ€“Men
โœ K. P. Hadeler; Dragan Jukiฤ‡; Kristian Sabo ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 121 KB

## Abstract The Michaelisโ€“Menten kinetics is fundamental in chemical and physiological reaction theory. The problem of parameter identification, which is not well posed for arbitrary data, is shown to be closely related to the Chebyshev sum inequality. This inequality yields sufficient conditions f